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Finding the Fourth Proportional to 66,381.83, 99,486.63 and 26,917.41

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Solution

The fourth proportional to 66,381.83, 99,486.63 and 26,917.41 is: 40,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.83 : 99,486.63 = 26,917.41 : x
  2. Step 2: Convert to fraction form
    66,381.83/99,486.63 = 26,917.41/x
  3. Step 3: Cross multiply
    66,381.83x = 99,486.63 × 26,917.41
  4. Step 4: Simplify right side
    66,381.83x = 2,677,922,782.30
  5. Step 5: Solve for x
    x = 2,677,922,782.30/66,381.83
  6. Step 6: Final answer
    x = 40,341.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.